Immerse yourself in every movie with 5.1 channels for true surround sound. The rear speakers and external subwoofer work with a three-channel sound projector and guarantee true cinematic surround sound, while the S-Master digital amplifier delivers maximum clear sound. With the true cinema sound of the HT-RT3, you can always take the best place in your home. The sound projector, subwoofer and rear speakers create authentic surround sound, so your favorite movies are instantly captivating. High quality surround sound from individual 5.1 audio channels using Dolby Digital.